US Bridges

Md 97 over Reddy Branch

FairClosed to traffic

Montgomery County, Maryland · 2.89 Miles S of Md 650 · Structure no. 100000150012010

Built
1927
98 years old
Condition
Fair
inspected March 2025
Type
Tee Beam
Concrete
Length
27 ft
1 main span
Daily traffic
10,740
2009 count
Owner
State
State Highway Agency

About this bridge

Md 97 over Reddy Branch is a concrete tee beam carrying Md 97 over Reddy Branch in Montgomery County, Maryland. It was built in 1927, so it is 98 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: closed to all traffic.

It carries about 10,740 vehicles a day, roughly 8% of them trucks, projected to reach 11,244 by 2026. The structure is 27 ft (8.2 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMd 97
CrossesReddy Branch
Location2.89 Miles S of Md 650
RouteState Highway 97
Coordinates39.18156, -77.06176
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,740 (2009)
Projected traffic11,244 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$48,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 97 over Reddy Branch built?

It was built in 1927, making it 98 years old in 2025.

What condition is Md 97 over Reddy Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2025.

How much traffic does Md 97 over Reddy Branch carry?

About 10,740 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 97 over Reddy Branch?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 27 ft wide.

Who owns Md 97 over Reddy Branch?

It is owned by the State Highway Agency.